We ________ supper when a policeman came to the door.
举一反三
- We ________ supper when a policeman came to the door.: had had just|had just had|have just had|just have had
- We() our dinner when a policeman came to the door. A: just had B: have just had C: just have had D: had just had
- We ( ) our breakfast when an old man came to the door.
- We didn’t have supper ______ our father came home. A: when B: once C: as soon as D: until
- C. Leave the door of the copy room open, when there is a meeting or people working next door.